Fix canvas blink_perf tests to avoid GPU fallback

Fix canvas blink_perf tests to avoid GPU fallback

There is an artificial regression in some of the canvas performance tests
after landing commit 627ddfd0de197d67567a15191f654b8835408bce
this change fixes the tests to prevent them from triggering the fallback
to CPU-based rendering.

BUG=606688
Committed: https://crrev.com/f0fad4a76fcb3105f871ad93311a13cd83cd6bd8
Cr-Commit-Position: refs/heads/master@{#403957}

[Justin Novosad, 2016-07-06 19:53:53]

junov@chromium.org changed reviewers:
+ xidachen@chromium.org

[Justin Novosad, 2016-07-06 19:53:54]

PTAL

[xidachen, 2016-07-06 20:16:25]

lgtm

https://codereview.chromium.org/2126013002/diff/1/third_party/WebKit/Performa...
File
third_party/WebKit/PerformanceTests/Canvas/draw-dynamic-canvas-2d-to-hw-accelerated-canvas-2d.html
(right):

https://codereview.chromium.org/2126013002/diff/1/third_party/WebKit/Performa...
third_party/WebKit/PerformanceTests/Canvas/draw-dynamic-canvas-2d-to-hw-accelerated-canvas-2d.html:40:
// Using destCanvas2D a source image is just to flush out the content when
nit: Using destCanvas2D *as* a source image.

https://codereview.chromium.org/2126013002/diff/1/third_party/WebKit/Performa...
File
third_party/WebKit/PerformanceTests/Canvas/draw-video-to-hw-accelerated-canvas-2d.html
(right):

https://codereview.chromium.org/2126013002/diff/1/third_party/WebKit/Performa...
third_party/WebKit/PerformanceTests/Canvas/draw-video-to-hw-accelerated-canvas-2d.html:38:
destCtx2D.getImageData(0, 0, 1, 1);
I think you meant to make the change in here.

[Justin Novosad, 2016-07-06 20:19:52]

fixed, thx.

[Justin Novosad, 2016-07-06 20:19:55]

The CQ bit was checked by junov@chromium.org

[Justin Novosad, 2016-07-06 20:19:56]

The patchset sent to the CQ was uploaded after l-g-t-m from
xidachen@chromium.org
Link to the patchset: https://codereview.chromium.org/2126013002/#ps20001
(title: "fix details")

[Justin Novosad, 2016-07-06 20:20:17]

The CQ bit was unchecked by junov@chromium.org

[Justin Novosad, 2016-07-06 20:21:39]

The CQ bit was checked by junov@chromium.org

[Justin Novosad, 2016-07-06 20:21:39]

The patchset sent to the CQ was uploaded after l-g-t-m from
xidachen@chromium.org
Link to the patchset: https://codereview.chromium.org/2126013002/#ps40001
(title: "whoops")

[commit-bot: I haz the power, 2016-07-06 20:22:36]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-06 21:39:34]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-07-06 21:39:41]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-06 21:41:23]

Description was changed from

==========
Fix canvas blink_perf tests to avoid GPU fallback

There is an artificial regression in some of the canvas performance tests
after landing commit 627ddfd0de197d67567a15191f654b8835408bce
this change fixes the tests to prevent them from triggering the fallback
to CPU-based rendering.

BUG=606688
==========

to

==========
Fix canvas blink_perf tests to avoid GPU fallback

There is an artificial regression in some of the canvas performance tests
after landing commit 627ddfd0de197d67567a15191f654b8835408bce
this change fixes the tests to prevent them from triggering the fallback
to CPU-based rendering.

BUG=606688

Committed: https://crrev.com/f0fad4a76fcb3105f871ad93311a13cd83cd6bd8
Cr-Commit-Position: refs/heads/master@{#403957}
==========

[commit-bot: I haz the power, 2016-07-06 21:41:24]

Patchset 3 (id:??) landed as
https://crrev.com/f0fad4a76fcb3105f871ad93311a13cd83cd6bd8
Cr-Commit-Position: refs/heads/master@{#403957}